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The influence of pelvic-belt design on backpack stability in mountain-biking

Title data

Höschler, Lucas ; Frisch, Michael ; Michel, Frank:
The influence of pelvic-belt design on backpack stability in mountain-biking.
2021
Event: Science & Cycling 2021 , 22-23 September 2021 , Leuven, Belgium.
(Conference item: Conference , Speech with paper )

Official URL: Volltext

Project information

Project financing: F&E-Vereinbarung

Abstract in another language

The pelvic belt is a common feature amongst modern bike backpacks and is attributed to provide backpack stability. In order to develop functional belts, backpack manufacturers must understand the effects of belt properties on stability and comfort. The goals of this study were to compare the effect of different pelvic belt designs on backpack stability in mountain biking, to test the potential of innovative roll-up belts and to derive findings for further backpack development. The backpack stability of 5 different belt conditions (conventional belt, elastic band, seat-belt and 2 spring balancer conditions) was tested with 11 healthy, male recreational cyclists, biking over an uneven ramp. Acceleration data from 4 IMUs placed on the rider (C7, SACRUM) and inside the backpack (TOP, BOTTOM) were used to calculate the respective backpack wobbling (BPW) of the lower and upper region. Subjective feedback was provided with a standardized questionnaire. The only significant differences between the belts were found for the BPW at the bottom region. The conventional belt had significantly smaller BPW values than all other belts. Comparing the roll-up belts, the seat-belt showed significantly lower BPW than the spring balancer. However, a low overall comfort caused by continuous abdominal compression was reported. No differences were found between the two spring forces, highlighting the importance of both belt tension and friction for backpack stability. If further improved roll-up belts could be an innovative feature for bike backpacks.

Further data

Item Type: Conference item (Speech with paper)
Refereed: No
Keywords: mountain biking; IMU; backpack wobbling; pelvic belt; comfort
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Biomechanics > Chair Biomechanics - Univ.-Prof. Dr. Franz Kontantin Fuß
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 600 Technology
700 Arts and recreation > 790 Sports, games, entertainment
Date Deposited: 14 Jul 2022 06:51
Last Modified: 14 Jul 2022 06:51
URI: https://eref.uni-bayreuth.de/id/eprint/70568